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Commit 934b2857 authored by Heiko Carstens's avatar Heiko Carstens Committed by Martin Schwidefsky
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[S390] nohz/sclp: disable timer on synchronous waits.



sclp_sync_wait wait synchronously for an sclp interrupt and disables
timer interrupts. However on the irq enter paths there is an extra
check if a timer interrupt would be due and calls the timer callback.
This would schedule softirqs in the wrong context.
So introduce local_tick_enable/disable which prevents this.

Signed-off-by: default avatarHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 3a95e8eb
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